I have lost my colour chart. Can I download the colour chart for the test?

The colour cards are not available for download on the JBL homepage. For this a guaranteed true colour print is required, and you need a printer which can be re-calibrated before each printout. Most privately used printers are not accurate enough for this.

We will happily send you a new colour chart bundle with all individual colour charts for the JBL tests free of charge. Please forward the JBL customer service your address.

Why are there no colour charts for the JBL GH test, the JBL KH test, the JBL calcium test Ca and the JBL magnesium test Mg?

The following tests from the test range are so-called titration tests: JBL GH test, JBL KH test, JBL calcium test Ca and JBL magnesium test Mg, where the number of drops are counted until the colour changes and the counted value is multiplied by a value:

Which scale applies for my aquarium? My test has two or three control fields with fish and recommendations.

We repeatedly receive questions regarding the symbols on the water test. The hobby areas cannot be clearly assigned to the scales for analysis. There are three symbols to make the hobby areas on the colour charts clear:

Discus = fresh water
Emperor = salt water
Koi = garden pond

In the following, you will find a list which assigns the scale for analysing the results from measurements in the hobby area and explains the symbols: The scales are described from the top to the bottom here.

The following JBL tests have a uniform scale for all 2 or 3 hobby areas for analysis of the results from the measurements, as differentiation is no longer necessary:

SiO2
Cu
NH4
NO2
PO4
pH 3-10
O2

The instructions point out that the comparator block should be used to compare the colours. Can this be done without the comparator block as well ? Or is there a factor from this comparison that is required for the measurement ?

The colour charts are intended to be used with the comparator block. In addition, when the comparator block is used with the blank water sample, this compensates the inherent water colour.

Therefore, if the comparator block is not used, there will most likely be deviations in the readings.

Do my water tests still work although they have been open for nine months?

Basically a sealed test keeps longer than an open one. How much the shelf life is reduced depends crucially on the handling and the storage conditions of the reagents. It may happen that a reagent in a test that has been open for 9 months doesn’t indicate correctly any more. However, additional information is needed to answer this question properly.

Plant Fertilisation with Optimised Consumption

The first step shows you how to achieve perfect water values and the second one how to modify your re-dosing to suit consumption. Unlike with standard fertilisation you adjust the fertiliser amount to your aquarium and not only save money but also get perfect looking plants.

The world’s best aquascapers use JBL products

JBL ProScape Tools

The JBL ProScape tools meet the requirements of the professional aquascaping perfectly. They are produced from high-quality steel, made in Japan, (with an extremely smooth surface) for scissors with the best quality and the highest cutting precision.

Outline: Fertilisation in the Aquarium

The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

The JBL Calculators – Calculated Success

How often should you fertilise – daily or weekly?

The subjects of plant care and fertilisation can sometimes take on a philosophical element. There are a lot of approaches and a lot of them can lead to success. It is important that your chosen approach suits your aquarium.

Plant care: How can water tests help?

Creating Dreamscapes under Water

Sooner or later every aquarist reaches the point where he wants more than "just" an aquarium with fish and plants. Perhaps he wants to simulate a landscape above water, such as a mountain range with woods or some special habitat (biotope), inside his aquarium.

ProScape: „Escarpment“ – an endorser Aquascape report

We asked some Proscapers to present their work to our community, which means you. Phillip Tauchmann created a model aquarium at home several months ago and recorded its setting-up and development with JBL ProScape in videos and photos.

New JBL Water Tests – This is how the best test

Individualized and specific plant fertilization is not really possible without these new JBL water tests, because the consumption of potassium, magnesium and CO2 varies widely from plant species to plant ...

JBL ProScapers can prove their case

For the perfect growth of their plants, aquascapers depend on water analysis. There is a 99 % probability that one substance will run out and lead to a deficiency if they guess the amount of fertilizer needed and don’t ...

The JBL colour chart booklet now available

Active water testers need new colour charts for their water tests from time to time. JBL is now selling a replacement for the complete colour chart booklet, which contains brief instructions and colour charts for all the ...

JBL and aquarium keepers help save the environment

Almost every aquarium keeper tests water and needs refill packs for their water tests regularly. At JBL's, they can obtain refill reagents for each test, thereby sparing their purse and the environment. That is because the glass ...

Calculador de dosagem ProScape

Here you can calculate the optimal supply for your aquarium with the JBL ProScape fertilizers. In order to supply the aquatic plants with exactly the right amount of fertilizer, we recommend dosing in two steps.

Análise da água, laboratório online

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds.
You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.

P301+P310a: IF SWALLOWED: Immediately call a POISON CENTER/ doctor.
P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P405: Store locked up.
P101: If medical advice is needed, have product container or label at hand.
P501a: Dispose of contents/container in accordance with local/regional/national/international regulations.
P102: Keep out of reach of children.
P103: Read label before use.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.